Hardening/softening behavior and reduced order modeling of nonlinear vibrations of rotating cantilever beams

Abstract : This work addresses the large amplitude nonlinear vibratory behavior of a rotating cantilever beam, with applications to turbomachinery and turbopropeller blades. The aim of this work is twofold. Firstly, we investigate the effect of rotation speed on the beam nonlinear vibrations and especially on the hardening/softening behavior of its resonances and the appearance of jump phenomena at large amplitude. Secondly, we compare three models to simulate the vibrations. The first two are based on analytical models of the beam, one of them being original. Those two models are discretized on appropriate mode basis and solve by a numerical following path method. The last one is based on a finite-element discretization and integrated in time. The accuracy and the validity range of each model are exhibited and analyzed.
Complete list of metadatas

Cited literature [77 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01394763
Contributor : Compte de Service Administrateur Ensam <>
Submitted on : Wednesday, November 9, 2016 - 5:06:48 PM
Last modification on : Tuesday, April 2, 2019 - 2:03:41 AM
Long-term archiving on: Wednesday, March 15, 2017 - 3:53:45 AM

File

LSI-INSM_ND_THOMAS-2016.pdf
Files produced by the author(s)

Identifiers

Citation

Olivier Thomas, Aurélien Sénéchal, Jean-François Deü. Hardening/softening behavior and reduced order modeling of nonlinear vibrations of rotating cantilever beams. Nonlinear Dynamics, Springer Verlag, 2016, 86 (2), pp.1293-1318. ⟨10.1007/s11071-016-2965-0⟩. ⟨hal-01394763⟩

Share

Metrics

Record views

260

Files downloads

644